Bird-cage spring



. (No Model.)

.E.- WAGNER. BIRD CAGE SPRING. j 7 No. 332,571. I Patented May 8, 1888.

U ITED STATES PATENT Fries.

EMIL \VAGNER, OF WASHINGTON, DISTRICT OF COLUMBIA.

BIRD-CAGE SPRING.

SPECIFICATION forming part of Letters Patent No. 382,571, dated May 8,1888.

Application fileclFebruary 29, 1888. Serial No. 265,717. (No model.)

To all whom it may concern:

Be it known that-I, EMIL WAGNER, a citizen of the United States,residing at Washington, in the Districtof Columbia, have inventedcertain new and useful Improvements in' Bird- Oage Springs; and I dohereby declare the fol lowing to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

My lnvention relates to an improvement in spring devices for supportingbirdcages or of trees 5 and'theinvention consists, essentially,

in a double spring properly arranged to support the cage, and in thecombination therewith of a guard wire or cord whose purpose and functionit is to limit the extension of the springs and also to promote safetyin the use of the device, all substantially as will be hereinafterdescribed and claimed.

In the annexed drawings, illustrating my invention, Figure 1 is a sideview of my improved device when not in use, the springs be- Lingcompressed. Fig. 2 is a view of the device when in use, and shows thesprings extended to their full limit, said limit of extension beingdetermined by the guard wire or cord.

Like letters of reference designate like parts in both figures.

In the ordinary spring devices which are at present employed for thepurpose of yieldingly suspendingbird-cages and analogous contrivances asingle helical or spiral spring is ordinarily employed; but the use ofasingle spring is attended with many disadvantages, preeminent amongwhich is that of allowing the bird-cage or suspended article to revolvemore or less at all times, thus disarranging the posi- 5. tion of thecage and oftentimes causing dizziness to the bird.

My invention aims to overcome this difficulty by providing a doublespring in lieu of the single spring.

In the drawings, A and A represent the two springs. They are ordinaryspiral springs,

- the rounds of whose coils have the same diameter throughout. It isevident,'however, that I do not intend to confine myself to anyparticular form of spring, it being only essential that I have twoparallel springs which are capable of compression or expansion along theline of their axes. The upper ends of the springs A and A are fastenedto a connecting cross-piece or yoke, B, having an eye, b,or otherwisesuitablyformed for connection to a hookup'onwhichthewholedeviceissuspended. In Fig. 2 I have indicated in dotted lines atE a hook which passes through the eye VI). 7

The lower or bottom ends of the wires A and A are connected'or attachedin some suitable manner to a cross-piece, O, which is'preferably'madewith a hook, 0, adapted to engage a ring, d, on the top of thebird-cage.

The shape and structure of the parts B and C may vary considerablywithout departing from the spirit of my invention. shown in the drawingsis indicated by way of example only.

I have said that the wires A and A were parallel, meaning by this thatthey are sub- The form.

stantially parallel, for the wires may in some ceptible of a rotarymotion, for it will be so held as to maintain a constant position. Thecross-pieces B and 0 are so connected to the supporting hook E and thering (1, respectively, that they cannot revolve about them,

and hence the cage cannot have a rotary motion unless the wires A and Atwist about each other, which is not likely or possible. The cage willtherefore maintain the'position in which it is suspended, and the doorthereof will always be on the same side and easy of access. s

D denotes a guard-wire, whosepurposeit is to regulate thelimit ofextension for the springs A and A, and also to serve as a sort of safetydevice, so that if either spring breaks or becomes dislocated frompositionthe cage will not fall, but will be supported by said wire. Thiswire is located midway betweemthe parallel springs A and A and parallelto them,

it being attached at its upper end to the part B at its eye 5, and atthe lower end to the part 0 at its middle point, near the hook 0. Itslength is such that it will be stretched to 00- cupy a straight positionwhen the springs have been comfortably extended. Thus the springs willlast longer than otherwise, for they will never be subject to any undueextension when a heavy cage is to be supported. They will not bestrained beyond what is proper, and hence they will last longer.Further, if at any time one of the springs becomes detached from eitherthe part B or O, or if it is broken by any means, the wire or cord Dwill support the cage, and the latter will suffer no displacement ordisturbance in consequence of the disarrangement of the spring.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a device for supporting bird-cages, the combination of the coiledsprings A and A, the cross-piece B, having eye I), and the crosspiece 0,having hook c, all substantially as described.

2. The combination of the springs AA, the' upper cross-piece, B, thelower cross-piece, G, and the guard-wire, all arranged substantially asand for the purpose specified.

In testimony whereof I aiiix my signature in presence of two witnesses.

EMIL WAGNER.

Witnesses:

PHILIP MAURO, FRED E. TAsKER.

